TWS Wireless bluetooth 5.0 Earphone 8D Stereo 3500mAh Power Bank Portable Headphone with Mic

Descriptions:Transmission range: 10 metersbluetooth protocol: 5.0Channel: stereo soundUsage: earplug typeMono - binaural: bilateral stereoSupport protocol: A2DP/AVRCP/HFP/HSPFrequency range: 2402mhz~2480mhzWireless emission standard: class 2Frequency response: 20hz~20khzCharging time: about 30 minutesEarphone calls: 3-5 hoursSingle ear playback: about 3 hoursFunctions:LED digital display screen3500 mAh large capacity charging box, rechargeable mobile phone, long timeHeadphone capacity: 45mAhSupport wireless chargingGood sound quality, loud soundAuto power on/off,auto pairingbluetooth 5.0 binaural callMusic time: 3-5 hoursPackage included:1 x TWS Wireless bluetooth Earphone1 x USB Cable(Note: without wireless charger)